The total energy of the car is its potential energy + its kinetic energy. This total energy remains constant across the length of the track. What would be the best way to increase the energy of the coaster as it proceeds through the course?

Question

Responses
A Increase the height at point A.Increase the height at point A.
B Increase the height at point B.Increase the height at point B.
C Make the roller coaster longer.Make the roller coaster longer.
D Decrease the number of cars in each train.Decrease the number of cars in each train.

Answer 1

The best way to increase the energy of the coaster as it proceeds through the course is:

A. Increase the height at point A.

Increasing the height at point A raises the potential energy of the coaster, as potential energy is directly proportional to height. Since the total mechanical energy (potential energy + kinetic energy) is conserved in a closed system, starting with a higher potential energy allows the coaster to have more energy available throughout the course.